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浙江大学学报(工学版)
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)
    
SSR-MDF control method for new energy converter
WU Yue1, ZHANG Guo-yue1, YANG Jie2, QI Dong-lian1
1. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; 2. Industrial Technology Research Institute, Zhejiang University, Hangzhou 310028, China
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Abstract  

In response to the complex working environment and nonlinear characteristic of new energy converter (NEC), the control method based on self-stable region and modeled dynamic feedback was proposed. Nonlinear mathematical model of NEC with LC filter was rebuilt, modeled and unknown nonlinear dynamic were separated; without considering the modeled dynamic, the existence condition and proof process of self-stable region were presented, and the design method was given; by introducing the modeled dynamic feedback, a novel control strategy for NEC system was established. The experimental platform based on the prototype of single-phase NEC was built, both steady and dynamic experiments were implemented, and the results verify that the proposed method achieves the stable control of the NEC system.

Published: 01 August 2015
CLC:     
  TM 614  
  TM 615  
  TM 619  
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WU Yue, ZHANG Guo-yue, YANG Jie, QI Dong-lian. SSR-MDF control method for new energy converter. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2015, 49(8): 1516-1521.

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http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2015.08.016     OR     http://www.zjujournals.com/eng/Y2015/V49/I8/1516


新能源变流器SSR-MDF控制方法

为了应对新能源变流器（NEC）的复杂工作环境及非线性特性,提出基于自稳定域和已建模动态反馈的控制方法.重新建立基于LC滤波器的NEC系统非线性数学模型,将其中的已建模动态和未知非线性动态进行分解；在不考虑已建模动态的基础上,给出NEC系统自稳定域的存在条件及证明过程,同时给出自稳定域的设计方法；将已建模动态反馈引入控制系统中,构建一种新型的NEC系统控制策略.搭建以单相新能源变流器样机为主的实验平台,并分别进行稳态和动态实验,结果证明提出的控制方法可以实现NEC系统的稳定控制.

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